An Etymological Dictionary of Astronomy and Astrophysics

Of, relating to, or constituting a verbal mood that is expressive of wish or desire.

Etymology (EN): From M.Fr. optatif, from L. optativus, from optatus, p.p. of optare, → opt, + -ivus, → -ive.

Etymology (PE): Optâné, optmand, from opt present stem of optidan, → opt, + adj. suffixes -âné, -mand. -yi.